SFC supports the following switches:
<b>/Scanonce</b> - Scans all protected system files once, at the next restart.
<b>/Scanboot</b> - Scans all protected system files every time you start your computer.
<b>/Cancel</b> - Cancels all pending scans of protected system files.
<b>/Quiet</b> - Replaces all incorrect file versions without prompting the user.
<b>/Enable</b> - Enables Windows File Protection for normal operation.
<b>/Purgecache</b> - Purges the file cache and scans all protected system files immediately.
<b>/Cachesize=n</b> - Sets the file cache size.